Snap-fastener



J. 0. H. CAZENOVE.

SNAP FASTENER.

APPLICATION FILED MAY 24, 1920.

Patented Nov. 30, 1920.

IN V EN TOR.

1.70.127 C'dzzzovc.

BY E;

?26:.ATT0RNEY..

UNITED STATES PATENT OFFICE.

JAMES O. H. C AZENOVE, NEW YORK, N. Y., ASSIGNOR F WHITMAN AND ONE-FOURTH TO CLAIR M. WHITMAN.

SNAPeFASTENER.

To al l whom it may wmm.-'

Be it known that I, JAMnsO. H. OAZE- ,NO'VE, .a citizen of the United States, and resident of New York, in the county of New York, -and State of New York, have invented certain new and useful Improvements in Snap-Fasteners, of which the fol-' lowing is a specification.

' thereby securing a more reliable snap .or

locking action; second, I to simplify the method of attachingfthe two members of the fastener to the fabrics or other material on which'the fasteneristo be used; third, to reduce the number of parts necessary for a complete fastener and fourth, to provide a fastener which will withal be simple and inexpensive in construction and convenient in operation.

I These and other objects will be more fully brought out in the following specification,

illustrated in the drawing, and covered in the 'appended claims. I

In the drawings Figure 1 is a plan view of the complete fastener, with the stud and socket members in locked engagement, with a portion of the cover or cap broken away to show the several elements comprising these members.

Fig. 2 is a plan view, and Fig. 3, a left half-section and a right half-elevation, of

the stud member after the first punching operation from asheet metal blank. I

Fig. 3 1 is a lefthalf-section and a right half-elevation of the stud member after its final forming operation in the press. I p Figs. 5 and 6 are sectional views of modlfied constructions of the stud member;

Fig. 7 is a left half-section and a right half-elevatiomtaken through the diameter T-7 of Fig. 1, of the complete fastener with' the stud and socket members in locked engagement and illustrating the method of attaching each member to its fabric; this view has a portion of the cover or cap broken away to expose the spring elements in such locked engagement.

Fig. 8 is a composite sectional View of the Patented Nov. 30, 1920.

Appli cation filed May 2'4, 1920. Serial no. 383,753.

baseportionof'the stud member, showing, tothe left of the vertical axis, the relative positlons of the rivet, fabric, and central opening in the annular ment; and, to the right relative position after the rivet stem has been pushed through the said fabric and central opening and its end upset or spread above said opening.

Like reference numerals indicate like parts throughout the different views.

The socket member of this invention comprises two main elements-the spring portionl of sheet metal and the cover or cap 5 ,of any suitable material.

The cap- 5 is pressed out in some such form as thatshown in Figs. 1 and 7. The spring member is made from a sheet metal disk struck up to form the base-flange 1 and a series of integral radial segments 1 and 1 extending horizontally inward toward a central opening. The segments 1 are interposed between the V-shaped radial segments ONE-FOURTH T0 RAY B.

base prior to attach-' of said axis, their l and are formed up into circular bulging heads radially disposed about, the central opening. These heads comprise the springelements of the socket member; they have an innercurvature on the surface facing the central opening, as shown at 1 of Fig. 1, which curvature conforms to that of the stud spring-elements at the portions which engage while in locked relation with each. other; these heads extend inwardly far enough to permit the spring-elements of both members to function properly during engagement and disengagement. The V-shaped segments 1*, which function as clamping segments, are pressed downwardly through an opening provided in the fabric 6 and then flanged outwardly so as to secure the fabric to the base-flange, 1.

Base-flange 1 is upset along its outer rim; beneath this rim cap 5 is fastened by crimping, as is shown in the half-section of Fig. 7. The stud member is'likewise made from asheet metal disk, struck up in the form shown in plan view in Fig. 2 and in left half-section and right half-elevation in Fig. 3. The tongue-portions 2 are then pressed upward from the base-plate 2, and then inwardly where the free ends are axially-indented. Further, portions 2 are formed into sections of a partially-spherical bulging head having radial indentations 2, and are separated by the vertical slots 4. These slots allow the resiliency ofthe tongue-por- Mtionsto act when: the latter are compressed.-

A hub 2 projectsbeIOW thebaSe-plate' 2 about a central opening 3.

" In the modified construction shown in section inFig. 5, the bul ing springtongues 10, are. integralv with the axially indented head but the free ends of these tonguesturn i inunder the rivet head 9 to provide a base. for attaching the fabric 7atheretop This method of construction increases the resilivency, of the spring-sections by distributing :the' bending of said spring-sections, when of their length,

under f'compression, over; a greater portion,

a ln F igL'c, which shows a sectional view of another modification of thestud nieinb er, the "axially i'nde'nted head is rigidly at tached, by rive'tingprother means, tothe rivethead 12.} The free ends ofgthe bulging spring-tongues are radially-disposed. about t acone-shaped headfportion of the attaching means tothe fabrici7. This method of conf struction also allows fora greater. d-istribution. of the bending action throughoutthe f spring-tongues 10, thereby preventing breakage,; through crystallization of 'tlie metal,

at any o s, V

Toattachi'theistud member are, its fabric 7, refer to'ifthe compos te sectional; Viewv shQWn'in Fig. 8, showing the rivet or, at

taching means in the before 1 and jvafterf positions, and proceed as; follows The I stud Imember f 2 is inverted over a mandrel which has a central upsetting head; this head ,enters the aXial opening between the tongue-portions 2, Fig, l, and rises ver tically to a position just below the opening After clamping thestud member in this position, the fabric 7 is placed over the opening fi, A=rivet 8: istth en positioned directly oyerthe aboveopening so that the fabric 1 lies between, stern-end of the rivet and E e pi ning 3a n e. hub ts the rivet is driven downward it perforates the f fabric, passes through the opening, andsis, v upsetagainst the mandrels upsetting head This operation: attaches the fabric to. the

' -wbeSe-plate-Q and rclenches the edges ofthe; sheared fabr c 1n an annular groove under 1 I theheadof the rivet 8,thus nsuring against accidentaltearing of the fabric from the fastener Having thus described my invention,

what I claim as new, and desire to secure by Letters Patent, is t 1".v A resilient-stud member, including an aXially-indented head and a plurality of ra- 7' dially di'sposed looped spring-elements se- Q cured to said headat their upper ends, the

portion of the fabric attaching means, and

'60 freeendsof saidspring-elements being radially-disposed about a cone-shaped head being freerto move vertically alongythejj outer surface of; said, head portion; j

"2, Ina springb'utton such as described,

of sheet metalistruck up to, form an annular a resilient stud member madejfrom a. disk base Qwitha central hub p rojectingdowni wardly. and having gain-opening therein, 'a

plurality of Vertically-proj ect'ing radiallydisposedflooped springeleinents integral inwardly about a central 0pening,..an

plurality or; em n slots between said; spring-eleiiients, substantially as described.

3. 'l'fhe inventionas in cla m 2, including means for attaching the stud Inember'tothe fabricor othermaterial bymeans-of arivet whose" stem portion extends through I the central opening in the annular base ofsaid stud member and is clenched to the upper. surface. of said base, the head'fportion of saidrivet being provided 'with aninner an: nular groove which incloses 'thedoubled' back edges ofthe fabric," thereby securing V with said base and provided withja central. indentation and a bulging top-sectionlooged' a said fabric between the rivet head and the H undersurface of the annular base;v

4:. In aspring fastener such-as described, the combinationlof a; noneresilient cover, of a resilient socket member made froma disk of sheet metal struck up to form an annular rim upsetalong its outer edge for ccrimping rim of said cover thereunder, a plurality of horizontal inwardly-projecting spring-sec-;

tions radially disposed abeut ,a' central opening and endlng :in circular looped heads provided with radially-curved"surfaces to 'con-.

formto the contour of'theistud memberat their engaging surfaces when ininterlocked relation onewith the other; and a like plu r rality of- V.-shaped clamping segments :in-

tegralwith said annular and alternatthe socket -member substantially as deday ofMay,Al;'D,1920. V

- p 'J. O. H.:CAZENOVELQ New j York and State of New. York this 15th 

